Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 24.
  1. Library Resource
    Articles et Livres
    décembre, 2011
    Kenya

    Natural entomopathogenic nematodes (EPNs) are considered as potential biological control agents against soil-borne insect pests. This study was conducted to determine the impact of land use on the distribution, occurrence and diversity of entomopathogenic nematode community. Isolation of EPNs was done using the baiting technique and application of morphological identification methods revealed presence of the genus Steinernema. Land use intensification negatively affected the occurrence and recovery frequency in soils of Embu and Taita districts.

  2. Library Resource
    Articles et Livres
    février, 2011
    Kenya

    Vulture population declines have been noted in West and Southern Africa, but have not been assessed in East Africa. Roadside transects conducted in 1976 and 1988 were compared with surveys done from 2003–2005 in and around Masai Mara National Reserve, Kenya. Staggering declines in abundance were found for seven of eight scavenging raptors surveyed. No Egyptian vultures were seen during recent transects.

  3. Library Resource
    Rapports et recherches
    novembre, 2011
    Kenya

    Tropical rainforests are characterized by habitat stability and complexity. Hence, the forests
    support a rich biological diversity, including 40% of all bird species. However, these rain
    forests have been shrinking due to increasing rate of deforestation, fragmentation, and other
    forms of resource exploitation. Degradation and loss of rainforests has threatened their rich
    biological diversity and the life-support systems. However, the rate at which birds are
    displaced by forest clearing and the potential for birds' conservation on farmlands are not

  4. Library Resource
    Rapports et recherches
    décembre, 2011
    Kenya

    This chapter presents and discusses the causes of land degradation, and ways of sustainable land development and agricultural productivity. The evidence presented here suggests several avenues for achieving a world without land degradation. First, efforts to promote sustainable land management need to improve locally and nationally. Second, instead of focusing solely on fertilizer subsidies, countries should use broader and more cost-effective incentives to encourage farmers to adopt integrated soil fertility management.

  5. Library Resource
    Articles et Livres
    décembre, 2011
    Kenya

    Rangelands in semi-arid Kenya have recently witnessed extensive land use changes. These changes can mainly be attributed to increased livestock populations and the response of the increased human population to both local and exogenous opportunities and constraints. This study was carried out in Kibwezi district of Kenya mainly inhabited by agro-pastoralists. The main objective of this study was to establish how different land use types influence soil properties in tropical semi-arid rangelands.

  6. Library Resource
    Rapports et recherches
    décembre, 2011
    Kenya

    The impact of land use and cover change on soil quality and pasture production was investigated in the rangelands of Nakasongola District, Uganda. Landsat (TM) images of 1986 and 1990 and Landsat (ETM+) of 2000 and 2004 for Nakasongola District were used to determine the extent and patterns of land use and cover change using the Integrated Land and Water Information Systems (ILWIS) 3.6 software.

  7. Library Resource
    Rapports et recherches
    décembre, 2011
    Kenya

    This study evaluates the potential effects of changes in climate, population and land cover on the
    quantity of surface water and groundwater resources in Lake Nakuru and Lake Elmenteita areas.
    Multiple linear regression analysis of the variables was done using Statistical Package for Social
    Sciences (SPSS) to achieve this objective. Population grows in the area at the rate of 3.4% to
    4.5% while natural vegetation cover is diminishing at 2.5% annually. There is constant rise in

  8. Library Resource
    Articles et Livres
    décembre, 2011
    Kenya

    Kimana Group Ranch (KGR) is a critical wildlife dispersal area for Amboseli National Park in Kenya. But
    irrigated agriculture in the group ranch is leading to increased conflicts and competition for land and other critical
    resources. This study used semi – structured interviews with group ranch members on their interactions with wildlife,
    resource use and access, land use changes and livelihoods. Most group ranch members practiced agriculture as opposed to

  9. Library Resource
    Articles et Livres
    avril, 2011
    Kenya

    "This manual is intended for national trainers on environmental crime in Eastern and Southern Africa. It seeks to enable such trainers to equip police officers and other actors involved in fighting environmental crimes with knowledge and understanding of the nature of environmental crimes, environmental inspection and investigation, and prosecution of environmental crimes. Its methods are based specifically on a participant-centred learning approach to facilitate optimum participation of learners."

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